Experts on animal production housing design were surveyed to determine current knowledge, identify potential control measures, and define research and development needs on indoor air quality in production animal facilities. Results indicated that for larger, more mature animals, properly designed and controlled natural ventilation systems are effective in providing good environments. For colder climates and more sensitive animals, a combined system with mechanical ventilation for cold weather and natural ventilation for warm weather works well.
The U.S. Environmental Protection Agency is seeking to improve the thermal quality of newhomes, most of which are being built in the sunbelt by large building development companies.Low-infiltration production (tract) homes need ventilation systems that satisfy the low-costpriority of the builders as well as the safety, health and low operating cost expectations ofhomeowners.
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